Home / 100,336.87-138,469.26-60,042.97

Finding the Fourth Proportional to 100,336.87, 138,469.26 and 60,042.97

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Solution

The fourth proportional to 100,336.87, 138,469.26 and 60,042.97 is: 82,861.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,336.87 : 138,469.26 = 60,042.97 : x
  2. Step 2: Convert to fraction form
    100,336.87/138,469.26 = 60,042.97/x
  3. Step 3: Cross multiply
    100,336.87x = 138,469.26 × 60,042.97
  4. Step 4: Simplify right side
    100,336.87x = 8,314,105,624.10
  5. Step 5: Solve for x
    x = 8,314,105,624.10/100,336.87
  6. Step 6: Final answer
    x = 82,861.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.